:root {
    --bg-primary: #1a1b1e;
    --bg-secondary: #2c2d31;
    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --accent-primary: #2ecc71;
    --accent-secondary: #3498db;
    --danger: #e74c3c;
    --card-bg: #2c2d31;
    --sidebar-width: 250px;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
}

.dashboard {
    display: flex;
    min-height: 100vh;
}

/* Sidebar Styles */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-secondary);
    padding: 2rem;
    position: fixed;
    height: 100vh;
    box-shadow: 2px 0 10px rgba(0, 0, 0, 0.1);
}

.logo {
    margin-bottom: 3rem;
    text-align: center;
}

.logo h1 {
    font-size: 2rem;
    margin-bottom: 0.5rem;
}

.logo p {
    color: var(--text-secondary);
}

.controls {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

/* Main Content Styles */
.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
}

/* Status Bar */
.status-bar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background-color: var(--bg-secondary);
    padding: 1rem 2rem;
    border-radius: 10px;
    margin-bottom: 2rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background-color: var(--danger);
    transition: background-color 0.3s ease;
}

.status-dot.active {
    background-color: var(--accent-primary);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 10px;
    text-align: center;
    transition: transform 0.2s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-value {
    font-size: 2rem;
    font-weight: bold;
    margin: 0.5rem 0;
}

.stat-unit {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Charts Container */
.charts-container {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(400px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.chart-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 10px;
}

/* Best Hash Card */
.best-hash-card {
    background-color: var(--card-bg);
    padding: 1.5rem;
    border-radius: 10px;
}

.hash-container {
    background-color: var(--bg-primary);
    padding: 1rem;
    border-radius: 5px;
    margin-top: 1rem;
    overflow-x: auto;
}

/* Buttons */
.btn {
    padding: 1rem;
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}

.btn-start {
    background-color: var(--accent-primary);
    color: white;
}

.btn-start:hover {
    background-color: #27ae60;
}

.btn-stop {
    background-color: var(--danger);
    color: white;
}

.btn-stop:hover {
    background-color: #c0392b;
}

/* Responsive Design */
@media (max-width: 768px) {
    .dashboard {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        height: auto;
        position: static;
        padding: 1rem;
    }

    .main-content {
        margin-left: 0;
        padding: 1rem;
    }

    .logo {
        margin-bottom: 1rem;
    }

    .controls {
        flex-direction: row;
        justify-content: center;
    }

    .charts-container {
        grid-template-columns: 1fr;
    }
}

/* Animations */
@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.05); }
    100% { transform: scale(1); }
}

.stat-card:hover .stat-value {
    animation: pulse 1s infinite;
}